A married couple have discovered that they are biological twins after a shock DNA test when they visited an IVF clinic because they were struggling to conceive a child.
The shocking discovery happened in the United States in Mississippi.
A fertility doctor according to reports, informed the unidentified pair that they were biological twins after he noticed the striking similarities in their DNA last Thursday.
Reports said the siblings were separated at a young age after their biological parents died and they were adopted into different families, both not knowing about the other.
It was said that the devastated couple were left at a loss with what to do, as marriage between siblings is outlawed in Mississippi.
Neither the couple nor doctor can be named for patient confidentiality reasons.
According to Mississippi Herald, the penalty for marrying a sibling in Mississippi is up to 10 years in prison and a fine of $500.
It however, reported that due to the highly unusual nature of this instance, it is believed that the couple would not face any charges.